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1.create alter insert update selectµÈ
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ѧÉú±ístudent
create table student( --ѧÉú±í
xh number(4), --ѧºÅ
xm varchar2(10), --ÐÕÃû
sex char(2), --ÐÔ±ð
birthday date, --ÈÕÆÚ
sal number(7,2) --½±Ñ§½ð
);
°à¼¶class
create table class( --°à¼¶±í
classid number(2), --°à¼¶±àºÅ
cname varchar2(20) --°à¼¶Ãû×Ö
);
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alter table student add (classid number(2));
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alter table student modify (xm varchar2(12)) ;
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alter table student modify (xh varchar2(5));
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alter table student drop column sal;
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drop table student;
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rename student to stu;
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--ÏÈɾ³ý
a)alter table student drop column sal;
--ÔÙÌí¼Ó
b)alter table student add (salary number(7,2));
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insert into student values ('A001','ÕÅÈý','ÄÐ','01-5ÔÂ-05',10);
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create or replace package DB_Oper is
-- Author : LIUBING
-- Created : 2009-10-28 15:01:30
-- Purpose : ²âÊÔOracleµ ......
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ÓÃÃüÁîSQL>SHOW PARAMETER DB¿ÉÒÔÏÔʾµ±Ç°Êý¾Ý¿âµÄBUFF ......
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CREATE TABLE TBL_TEST
(
ID NUMBER,
NAME VARCHAR2(100 BYTE),
PID NUMBER &nbs ......
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create user his identified by his default tablespace users temporary tablespace temp;
grant connect,resource,dba to his;
create tablespace his
logging
datafile 'd:\oracle\product\10.2.0\oradata\zjxsh\his.ora' size 100M extent
management local segment space management auto;
exp his/ny@ny ......